Unfortunately, up to 30% of pregnancies end in miscarriage. The good news is that most of these will happen in the first 8 weeks of pregnancy, and close to 95% happen in the first trimester. So, once you reach 14 weeks, the risk of a miscarriage drops dramatically. Additionally, once you have had a first trimester ultrasound to confirm that your fetus is the appropriate size and has a heartbeat, the risk of miscarriage drops as well.